4194439 has 2 divisors, whose sum is σ = 4194440. Its totient is φ = 4194438.

The previous prime is 4194433. The next prime is 4194451. The reversal of 4194439 is 9344914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4194439 - 2¹⁵ = 4161671 is a prime.

4194439 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4194433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097219 + 2097220.

It is an arithmetic number, because the mean of its divisors is an integer number (2097220).

Almost surely, 2^4194439 is an apocalyptic number.

4194439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4194439 is an equidigital number, since it uses as much as digits as its factorization.

4194439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 4194439 is about 2048.0329587192. The cubic root of 4194439 is about 161.2716246062.

The spelling of 4194439 in words is "four million, one hundred ninety-four thousand, four hundred thirty-nine".